Russian standards PDF
Tank cars of 1520 mm gauge main-line railways. General specifications
Document status: Withdrawn
Electric machines. Rated speeds of rotation and tolerances
Document status: Active
Twist drills with straight shanks. Middle series. Basic dimensions
Document status: Active
Measuring tips of apparatuses for linear measurements. Specifications
Document status: Active
Plastics. Methods of test for resistance to abrasion
Document status: Active